League of Legends Pioneer Lauri “Cyanide” Happonen Dies at 31

The esports world is in mourning following the confirmation that Lauri “Cyanide” Happonen, one of the earliest and most iconic professional players in League of Legends history, has passed away at the age of 31. According to reports from the Finnish outlet Ilta-Sanomat, Happonen died several months ago on July 31, though the news was only recently confirmed by Finland’s Digital and Population Data Services Agency (DVV). No details regarding the circumstances or cause of his death have been publicly disclosed.

Happonen etched his name into gaming history during the formative years of competitive League of Legends. In 2011, playing as the jungler for Fnatic, he won the very first League of Legends World Championship. At just 16 years old at the time of the victory, he became the youngest World Champion in the game's history, a historic milestone that remains unbroken.

Beyond his initial world championship success, the 2011 title marked a monumental achievement for the region, representing the first Worlds victory secured by a European organization. Following that breakthrough, Happonen became an integral part of Fnatic's first golden era of the Orange and Black alongside teammates Paul “sOAZ” Boyer, Enrique “xPeke” Cedeño Martínez, and Bora “YellOwStaR” Kim. Together, the roster established dominant control over Europe by capturing three consecutive European League Championship Series (EU LCS) titles between 2013 and 2014, in addition to reaching the World Championship semifinals in 2013.

After departing Fnatic in 2015, Happonen went on to play for Origen alongside his close friend xPeke until 2017, later venturing into online streaming and hosting for Yle Kioski Gaming before officially stepping away from top-tier competition at the end of 2022. Despite his retirement, he remained connected to the community and recently took part in the EU LCS Classic Showmatch during an event in France on July 25, just six days before his reported passing.

Tributes quickly poured in from across the global gaming community as news of his death spread. Fnatic issued a statement honoring his legacy, noting that during his four-year tenure with the organization, he made history as the youngest ever player to win Worlds and left behind an indelible mark on the sport that will never be forgotten.

Former teammates and industry figures also shared heartfelt memories of the Finnish player. Bora “YellOwStaR” Kim reflected warmly on their years together, stating that Happonen was far more than just a teammate. "Lauri was so much more than a teammate. We shared our everyday lives for over two and a half years, and he became so much more than just someone I played alongside," YellOwStaR wrote, adding that Happonen remained full of dreams and future projects when they recently reunited at the July showmatch.

Other prominent figures within the competitive scene highlighted his vital role in paving the way for modern esports. Fabian “GrabbZ” Lohmann, Fnatic’s head coach, noted that Happonen undoubtedly helped shape the early scene, inspiring many fans to follow competitive gaming. Happonen is the second member of Fnatic's 2011 championship roster to pass away, following the death of Maciej “Shushei” Ratuszniak in April 2025 at the age of 36.